Fastener-setting machine



April 5 1927.

J. K. DIAMOND FAS'TENER SETTING MACHINE Filed Dec. 1. 1926 H7 11v m 8 anR0 V. 6 0 E w fi m N mm Rv I rflQ ww T K A 7 .1 6 "h e m v a a 0 [1 ZPatented Apr. 5, 1927.

UNITED STATES JAMES K. DIAMOND, OF GRAND RAPIDS,

MIGHIGAN, ASSIGNOR TO CLIPPER BELT LACE-E COMPANY, OF GRAND RAPIDS,MICHIGAN.

FASTENER-SETTING MACHINE.

Application filed December 1, 1926.

In machines for applying fasteners to belts, blowout boots and the like,such as are shown in my Patent No. 1,593,572, dated July 27, 1926, aplurality of fasteners mounted on cards are put in place in the machineand the cards removed. In my said patent, I illustrated one means fordoing this.

The main objects of my present invention are:

First, to provide in a machine of the class described, an improvedstripper for removing the fastener holding card after the same has beenplaced in the-machine.

Second, to provide an improved stripper mechanism of the class describedwhich is very easy to operate and highly efficient.

Third, to provide a structure having these advantages which is simpleand economical and not likely to get out of repair.

Objects relating to details and economies of construction and operationof my invention will definitely appear from the detailed description tofollow.

The invention is defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention isillustrated in the accompanying drawing, forming a part of thisapplication, in which:

Fig. 1 is a perspective view of a machine embodying the features of myinvention, the parts particularly relating to my present improvementsbeing shown in full lines, the associated parts being shown by dottedlines.

Fig. 2 is a detail side elevation with the stripper in its normal orretracted position, its work engaging position being indicated by dottedlines.

Fig. 3 is a fragmentary side elevation showing the stripper in anintermediate position on its return stroke.

In the drawing similar reference characters refer to similar partsthroughout the several views.

In the accompanying drawing, the machine illustrated is an embodiment ofcertain features of the structure illustrated in my said Patent No.1,593,572 and comprises a relatively fixed jaw 1 having a vertical faceand a coacting rot'atably mounted jaw 2, the jaw 2 being mounted in acurved hearing 3 in the bed 4 of the machine. The

means for actuating the rotating jaw are not.

- projecting Serial No. 152,009.

illustrated, suitable means being shown and described in detail in mysaid patent.

On the jaw 2 I mount a fastener holder 5 adapted to receive a pluralityof fasteners 6. These fasteners are, in practice, mounted in sets upon acard 7, a set of the fasteners being arranged in the holder and retainedtherein by a pin 8 preferably as described in my said patent.

In my said Patent No. 1, 593,572, the jaw 1 has a slotted face intowhich the teeth of the stripper are retracted.

In my present improvements, the jaw 1 has a flat unbroken face so thatthe fasteners are uniformly supported and there are no slits or openingsfor them to wedge into when the jaws are closed.

I provide a support consisting of a pair of spaced upright supportmembers 9 carrying a pin 10. The bar-like stripperll is 1011-gitudinally slotted at 12 to receive this pin so that the stripper issupported for a combined swinging and longitudinal movement. The coiledspring 13 acts to normally hold the stripper in its retracted elevatedposition as shown in Fig. 2.

The stripper is provided with an upwardly projecting handle 14 adjacentits front end and has a plurality of downwardly forwardly facing teeth15 notched at 16 to facilitate their engagement with the edge of thecard 7.

As the stripper is swung downwardly and pulled forwardly by theoperator, the lugs 17 projecting laterally from the stripper are broughtinto engagement with the forwardly facing cam portions 18 on thesupports, thereby guiding the teeth into work engaging position, asshown by dotted lines in Fig. 2.

On the downward movement of the stripper, the lugs 17 are brought intoengagem-ent with the control levers 19 which are pivoted at 20 and heldyieldingly against the stops 21 by the coiled springs22. These levershave inclined parts 23 which permit the lugs to ride on the cams 18, theinclined parts 23 terminating in keepers 24 with which the lugs 17engage when the stripper is in its work engaging position.

These control levers engaging the stripper, hold it against retractedmovement during the initial part of its return stroke so that duringthis part of its return stroke, the stripper teeth are given a forwardand upward movement, disengaging the card from the rear prongs of thefasteners and lifting it from the fasteners, as shown in Fig. 3.

When the levers come into contact with the stops 21, the lugs 17 aredisengaged from the keepers under the action of the spring 13, so thatin operation, when the operator pulls downwardly and forwardly on thehandle 14, the stripper is brought into work engaging position, andcontinued forward pull engages the work and frees the card from the rearprongs.

It is not necessary for the operator to push rearwardly on the handle,but as it is released at the end of the forward pull, the spring 13 willreturn the parts to initial position. With the card disengaged from oneset of fastener prongs, it may be easily disengaged from the othermerely. by pulling upwardly thereon.

My improved stripper is very simplev and practical in structure andoperation.

I- have illustrated and described my improvements as I have embodiedthem in practice. I have not attempted to illustrate and describecertain modifications and adaptations which I contemplate as it isbelieved that this disclosure will enable those skilled in the art toembody or adapt my improvements as may be desired.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a structure of the class described, the combination of a fixed jawhaving a vertical face, a movable jaw operatively associated therewithand provided with a fastener holder adapted to receive a plurality offasteners, upright spaced support members disposed above and at the rearof said fixed jaw, said support members having forwardly inclined camson their forward edges, a stripper supporting pin extending between saidsupport members, a stripper longitudinally slotted to engage said pinwhereby it is supported for reciprocating and swinging movement, saidstripper being provided with a plurality of downwardly projectingforwardly facing notched teeth spaced to pass between the fastenersmounted in said holder, a spring acting to normally hold said stripperin its retracted elevated position, lugs on said stripper engaging saidcams on the down stroke of the stripper whereby the stripper is movedfor wardly, stripper control levers pivotally mounted on said supportsto be engaged by said lugs on the down stroke of the stripper andprovided with keepers engaging said lugs when the stripper is in itsactuated position to impart a forward movement during the initial partof its return stroke, actuating springs for said control levers, andstops on" said supports limiting the upward movement of said controllevers so that the stripper is disengaged therefrom.

2. In a structure of the class described, the combination of coactingjaws, a fastener holder adapted to receive aplurality of'fastenersoperatively associated with said jaws, spaced support members havingforwardly inclined cams on their forward edges, a stripper supportingpin extending between said support members, a stripper longitudinallyslotted to engage said pin whereby it is supported for reciprocating andswinging movement, said stripper being provided with a plurality ofdownwardly projecting forwardly facing notched teeth spaced to passbetween the fasteners mounted in said holder, a spring acting tonormally hold said stripper in its retracted elevated position, lugs onsaid stripper engaging said cams on the down stroke of the stripperwhereby the stripper is moved forwardly, stripper control leverspivotally mounted on said supports to be engaged by said lugs on thedown stroke of the stripper and provided with keepers engaging said lugswhen the stripper is in its actuated position to impart a forwardmovement during the initial part of its return stroke, actuating springsfor said control levers, and stops on said supports limiting the upwardmovement of said control levers so that the stripper is disengagedtherefrom.

3. In a structure of the class described, the

combination of a fixed jaw having a vertical face, a movablejawoperatively associated therewith and provided with a fastener holderadapted to receive a plurality. offa teners, upright spaced supportmembers disposed above and at the rear of said fixed jaw, said supportmembers havingforwardly inclined cams on their forward edges, a strippersupporting pin extending between said support members, a stripperlongitudi nally slotted to engage said pin whereby it is supported forreciprocating and swinging movement, a spring acting to normally holdsaid stripper in its retracted elevated position, lugs on said stripperengaging said cams on the down stroke of the stripper whereby thestripper is moved forwardly, stripper control levers pivotally mountedon said supports to be engaged by'said' lugs on the down stroke of thestripper and pro vided with keepers engaging said lugs when the stripperis in its actuated position to impart a forward movement during theinitial part of its return stroke, actuating springs for said controllevers, and stops on said supports limiting the upward movement of saidcontrol levers so that the stripper is disengaged therefrom.

4. In a structure of the class described, the combination of coactingjaws, a fastener holder adapted to receive a plurality of fastenersoperatively associated with said jaws,

lit

spaced support members having forwardly inclined cams on their forwardedges, a stripper supporting pin extending between said support members,a stripper longitudinally slotted to engage said pin whereby it issupported for reciprocating and swinging movement, a spring acting tonormally hold said stripper in its retracted elevated position, lugs onsaid stripper engaging said cams on the down stroke of the stripperwhereby the stripper is moved forwardly, stripper control leverspivotally mounted on said supports to be engaged by said lugs on thedown strike of the stripper and provided with keepers engaging said lugswhen the stripper is in its actuated position to impart a forwardmovement during the initial part of its return stroke, actuating springsfor said control levers, and stops on said supports limiting the upwardmovement of said control levers so that the stripper is diseir gagedtherefrom.

5. In a structure of the class described, the combination of coactingjaws, a fastener holder, a stripper supported for reciprocating andswinging movement provided with notched teeth, a spring acting to holdsaid stripper normally in its retracted position, a cam with which saidstripper engages on its down stroke whereby the stripper is guided intooperative relation to the work, a spring actuated stripper control leverengaging said stripper during the initial part of its return strokewhereby the stripper 1s moved forward, and astop limiting the upwardmovement of said control lever whereby the stripper is disengagedtherefrom under the action of the said stripper return spring.

6. In a structure of the class described, the combination of coactingjaws, a fastener holder adapted to receive a plurality of fastenersoperatively associated with said jaws, a stripper supported forreciprocating and swinging movement and provided with notched workengaging teeth spaced to pass between the fasteners mounted in saidholder, a cam with which said stripper engages on its down strokewhereby the stripper is guided into operative relation to the work, astripper control lever engaging said stripper during the initial part ofits return stroke whereby the stripper is moved forward, and a stoplimiting the upward movement of said control lever whereby the stripperis disengaged therefrom on the return stroke of the stripper.

7. In a structure of the class described, the combination of fastenersetting means, a fastener holder operatively associated with saidfastener setting means, a stripper supported for reciprocating andswinging movement, a cam with which said stripper engages on its downstroke whereby the stripper is guided into operative relation to thework, a stripper control lever engaging said strip per during theinitial part of its return stroke whereby the stripper is moved forward,and a stop for limiting the upward movement of said control leverwhereby the stripper is disengaged therefrom on its return stroke.

8. In a structure of the class described, the combination of fastenersetting means, a fastener holder operatively associated with saidfastener setting means, a stripper mounted for reciprocating andswinging movement, a spring acting to normally hold said stripper in itselevated position, means for moving said stripper forwardly intooperative relation to the work on the downward stroke of the siripper,and a means acting to further advance the stripper during the initialpart of its return stroke.

9. In a structure of the class described,the combination of fastenersetting means, a fastener holder operatively associated with saidfastener setting means, a strippermounted for reciprocating and swingingmovement, means for moving said stripper forwardly into operativerelation to the work on the downward stroke of the stripper, and a meansacting to further advance the stripper during the initial part of itsreturn stroke.

10. In a structure of the class described, the combination of fastenersetting means, a fastener holder operatively associated therewith, astripper mounted for reciprocating and swinging movement, means formoving said stripper forwardly into operative relation to the work onthe downward stroke of the stripper, and means for imparting a forwardand upward movement to said stripper after the same is positioned toengage the work.

11. In a structure of the class described, the combination of fastenersetting means, a fastener holder, a stripper supported for combinedreciprocating and swinging movement, means for guiding said stripperinto operative relation to the work on the down stroke thereof, andmeans for imparting a forward and upward movement from such workengaging position.

In witness whereof I have hereunto set my hand.

JAMES K. DIAMOND.

